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Sept 16, 2018 15:34:05 GMT
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This may be a pointless question but does any one know of a product or method to clean Pre & Post Cat O2 sensors on a 2006 vehicle?
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Rich
Club Retro Rides Member
Posts: 6,256 
Club RR Member Number: 160
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Cleaning Pre & Post Cat O2 sensorsRich
@foxmcintyre
Club Retro Rides Member 160
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Sept 16, 2018 15:47:59 GMT
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This may be a pointless question but does any one know of a product or method to clean Pre & Post Cat O2 sensors on a 2006 vehicle? Not really something that you can do aside from use a product like Cataclean. The way oxygen sensors work is to pass the exhaust gas over a chemical which generates a small voltage when exposed to oxygen. If that loses its effectiveness, the only real option is sensor replacement. They aren't like a resistance-based MAP or MAF sensor with an element that can become gunged up. Hope this is 'helpful'.  |
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Sept 16, 2018 15:54:59 GMT
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Thanks Rich I remember back at the turn of the century (god that sounds old) when I had my Saxo  if the sensor failed you had to change them, that was along while and I was hoping that there may of been developed a way to clean the sensors. I will look at getting some new sensors for the ST now. |
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Rich
Club Retro Rides Member
Posts: 6,256
Club RR Member Number: 160
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Cleaning Pre & Post Cat O2 sensorsRich
@foxmcintyre
Club Retro Rides Member 160
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Sept 16, 2018 17:53:12 GMT
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If it's a Ford ST, my experience of them is they tend to like to burn a little oil. Nothing wrong in that if that applies in your instance, but if it does, the O2 sensor (or Hego sensors as Ford call them) do not respond well long term to oil in the exhaust charge. It does increase the rate of decay of the sensor. Buy a good branded pair or go OE would be my advice |
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Sept 16, 2018 18:50:07 GMT
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Ok Rich
It had been running with a broken Head on it for I don't know how long with the water mixing with the oil.
I will get a new pair of sensors for it.
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